Previously, vb2_unpack_key() actually unpacked a key buffer. Callers
that had a vb2_packed_key had to typecast it back to a uint8_t buffer to
unpack it. Rename vb2_unpack_key() to vb2_unpack_key_buffer(), and make
vb2_unpack_key() unpack a vb2_packed_key.
BUG=chromium:611535
BRANCH=none
TEST=make runtests; emerge-kevin coreboot depthcharge;
emerge-samus and boot it
Change-Id: I9ee38a819c59cc58a72ead78cf5ddf3d0f301ae7
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/400906
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
The old vboot1 cryptolib hard-coded many of its padding arrays in a
padding.c file. Use the equivalent vboot2 apis instead.
This change is almost exclusively on the host and test side; the only
firmware impact is on a single line of debug output.
BUG=chromium:611535
BRANCH=none
TEST=make runtests; emerge-kevin coreboot depthcharge
Change-Id: If689ffd92f0255847bea2424950da4547b2c0df3
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/400902
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
This patch makes futility show command support boot block descriptor (BDB)
of the common boot flow.
BUG=chromium:649554
BRANCH=none
TEST=make runtests. Ran futility show bdb.bin.
Change-Id: I5f199a32ab1c268351e822e37ed39e41ae19bc7a
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/388631
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This replaces all calls to vboot1 VerifyFirmwarePreamble() with
equivalent vb2.0 functions. No effect on ToT firmware, which already
uses the vboot2.0 functions.
BUG=chromium:611535
BRANCH=none
TEST=make runtests
Change-Id: I5c84e9ed0e0c75e2ea8dbd9bfcde0597bc457f24
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/349322
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Futility needs to link against both vboot1/vboot2.0 and vboot2.1
functions. This was easy in the past because it did (vboot1 +
vboot2.1) and there's no overlap.
In replacing vboot1 function calls and structs with vboot2.0, now there
are symbol collisions between vboot2.0 and vboot2.1. For example, both
of them use a struct called vb2_signature, but the structs are defined
differently. Functions which operate on those structs also overload.
Rename the vb2.1 structs to start with vb21_ instead of vb2_. Do the
same for vb2.1 functions which operate on vb2.1 data.
BUG=chromium:611535
BRANCH=none
TEST=make runtests
Change-Id: I24defd87cbd9ef64239faf1a8e98ab2372d27539
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/347458
Reviewed-by: Daisuke Nojiri <dnojiri@google.com>
The "rwsig" type is used for independent device firmware (not
Chromebook BIOS) that need to verify themselves instead of using
software sync.
The expected use case is that a RO firmware contains a
vb2_public_key struct along with an FMAP or other pointers to a
slot for RW firmware. The RW firmware slot reserves room for a
vb2_signature struct.
This CL changes the args and behavior of the rwsig type, so that
the RW firmware can be [re]signed independently of the rest of
the image.
BUG=chrome-os-partner:46254
BRANCH=smaug,ToT
TEST=make runtests, manual
Create a keypair:
futility create --desc "Key One" tests/testkeys/key_rsa2048.pem foo
Sign a RW binary and build a complete image out of the parts:
futility sign --type rwsig --prikey foo.vbprik2 rw.bin sig.bin
dd if=/dev/zero bs=65536 count=1 of=image.bin
dd if=rw.bin of=image.bin conv=notrunc
dd if=sig.bin bs=$((65536 - 1024)) seek=1 of=image.bin conv=notrunc
Verify both the separate parts and the combined image:
futility show --type rwsig --pubkey foo.vbpubk2 rw.bin sig.bin
futility show --type rwsig --pubkey foo.vbpubk2 image.bin
Re-sign the combined image with a different keypair:
futility create --desc "Key Two" tests/testkeys/key_rsa1024.pem bar
futility sign --type rwsig --prikey bar.vbprik2 image.bin
Now the first key no longer verifies:
futility show --type rwsig --pubkey foo.vbpubk2 image.bin
But the second key does:
futility show --type rwsig --pubkey bar.vbpubk2 image.bin
Change-Id: Ifdddab08f218f506eb1dce28851b153d70140a7b
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/305980
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This moves the functions that handle BIOS file types into a
separate set of source files. BIOSes are constructed from other
components arranged in particular ways, so they shouldn't be
mixed in with the code specifically for those components.
BUG=chromium:231574
BRANCH=none
TEST=make runtests
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: I15c3fec61498925f9b8c672092fd97e7ea2d90e9
Reviewed-on: https://chromium-review.googlesource.com/262898
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This declares the options for the sign and show commands in a
header file.
We want to split the code for logically separate file types into
separate source files, but we don't want to have multiple
option-parsing routines, so that we can be sure we're using the
same option names consistently (for example, --hash_alg always
takes the same args and means the same thing).
BUG=chromium:231574
BRANCH=none
TEST=make runtests
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: I939bd19ba199b4c44eb41cff3571cff88df9a181
Reviewed-on: https://chromium-review.googlesource.com/262896
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This allows the user to manually specify the type of an input
file, since not all file types can be reliably identified.
This also adds a test to ensure that futility doesn't coredump if
you give it the wrong type (although I'm sure it's not exhaustive).
BUG=chromium:231574
BRANCH=none
TEST=make runtests
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: I9d909305d9989fe7299e744c585de380109cf8cd
Reviewed-on: https://chromium-review.googlesource.com/262895
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Instead of calling futil_traverse() to iterate through a preset
list of functions, this establishes a separate show() and sign()
function for each type of file.
The only significant change is that walking through the FMAP areas
within BIOS images is done in BIOS-specific functions instead of
that being the "normal" case with every other type of file
skipping that traversal.
This is a refactoring only. There is no externally visible change.
BUG=chromium:231574
BRANCH=none
TEST=make runtests
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: I7080afb43e35308c8bb618793c8382c2efb3d6a1
Reviewed-on: https://chromium-review.googlesource.com/262894
Reviewed-by: Randall Spangler <rspangler@chromium.org>
The help message for the sign command is much too long. This
breaks it into several subcategories.
BUG=none
BRANCH=none
TEST=make runtests
futility help sign
futility help sign pubkey
futility help sign fwblob
futility help sign bios
futility help sign vmlinuz
futility help sign kernel
Change-Id: I3e12b2cfdfb17a77c171f925a53748efb1d6c440
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/260496
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Instead of a separate help function for each command, let's just
require each command to handle a --help option. This will make it
easier to layer the commands (for example, "sign" could have
several subcommand variants, each with its own help).
BUG=none
BRANCH=none
TEST=make runtests
I also compared the result of running "futility help CMD" before
and after this change. The help still shows up correctly.
Change-Id: I5c58176f32b41b0a2c2b8f0afb17dddd80fddc70
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/260495
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Some of the help messages are getting pretty long. We should
allow each command to provide additional help details only when
asked.
BUG=none
BRANCH=none
TEST=make runtests
I also compared the help messages for all commands, both before
and after this change to ensure that nothing was different.
Change-Id: Ibe92ec80f99d286886fe020c9d826a5a05556471
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/260494
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Some commands look for a --debug option, others don't. The
feature is implemented globally, so let's parse it as a global
option.
BUG=none
BRANCH=none
TEST=make runtests
Change-Id: I3b169e4a1b93443786913276651113d1c915a834
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/258500
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Because all of our private key structs carry around the openssl
struct rsa_st data blobs, we can use those blobs to extract the
corresponding public key and generate a digest of it.
This lets us match our public and private keys without having to
rely on the filenames. There's no crypto verification without
actually *using* them, of course, but it's handy for quick reference.
BUG=chromium:231574
BRANCH=none
TEST=make runtests
This also adds a test to ensure that all the public and private
keys generated from the same .pem file have the same sha1sums.
Change-Id: If83492437e3ef37f7c4ebca4675336b75f631901
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/246768
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This enhances the futility show command to recognize and identify
our public and private key files, for both the old vboot 1.0
format and the new vboot 2.1 format.
BUG=chromium:231547
BRANCH=ToT
TEST=make runtests
vboot 1.0:
futility show tests/devkeys/*.vbp*
vboot 2.1:
futility create tests/testkeys/key_rsa2048.pem foo
futility show foo.vbp*
Change-Id: I9d7641db03e480b416790a7da6b473215444128a
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/246767
Reviewed-by: Randall Spangler <rspangler@chromium.org>
The host-side futility tool will need to support all extant vboot
implementations. Some legacy futility commands only support the
original vb1 format, but others ("show" or "sign", for example)
may need to be instructed which formats to expect or emit.
This change adds some global args to specify the preferred
formats. It also cleans up a few [unused AFAICT] one-letter args
to avoid conflicts.
BUG=chromium:231574
BRANCH=none
TEST=make runtests
Nothing makes use of this yet, except the "help" command.
Change-Id: Ib79fa12af72b8860b9494e5d9e90b9572c006107
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/246765
Reviewed-by: Randall Spangler <rspangler@chromium.org>
1. Increase kernel preamble revision from 2.1 to 2.2.
2. Add flags field to kernel preamble.
3. Update futility to accept flags parameter for vbutil_kernel and
cmd_sign for kernel.
4. Pass in an extra flags field to SignKernelBlob and
CreateKernelPreamble.
BUG=chrome-os-partner:35861
BRANCH=None
TEST=1) "make runalltests" completes successfully. 2) vboot_reference
compiles successfully for ryu. 3) Verified flags field in header using
futility show.
Change-Id: If9f06f98778a7339194c77090cbef4807d5e34e2
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://chromium-review.googlesource.com/245950
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
A truncated BIOS with an otherwise valid FMAP that now points way
off the end of the file shouldn't cause coredumps.
BUG=none
BRANCH=ToT
TEST=make runtests
Change-Id: Idf96e1e6a381bf0fe0b1cb2d16e3dad39ce7a0dc
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/245500
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This moves the what-kind-of-file-is-this logic into a separate
file, and makes it work by calling distinct recognizers until one
hits. A new "-t" option to the show command prints what it's
doing.
BUG=chromium:228932
BRANCH=ToT
TEST=make runtests
Change-Id: Id8f60bdf3fe6a9adf41b4555b3448a261fa52fea
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/245122
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Adding functionality to allow for rebuilding of vmlinuz after it
has been processed into vblock and header stripped. Basically appends
the 16-bit header of a vmlinuz image onto the end of the vblock.
BUG=chromium:438302
BRANCH=none
TEST=Successfully ran "make runalltests".
Also, ran:
1. Repack kernel block (so that 16-bit header is included):
"vbutil_kernel --pack kern_0 ..."
2. Verify kernel: "vbutil_kernel --verify kern_0 ... ". This should
be done before booting into kernel, but not necessary for it to work.
3. Rebuild vmlinuz image:
"vbutil_kernel --get-vmlinuz kern_0 --vmlinuz-out vm.out"
4. Set up kexec with vmlinuz (this should complete with no errors):
"kexec -l vm.out (other kernel cmd line args)"
5. Boot into kernel:
"kexec -e"
Change-Id: Iaa1582a1aedf70b43cdb3a56cde1fb248f1793d4
Signed-off-by: Shelley Chen <shchen@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/232750
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This adds a field in the GBB header to store the sha256 digest of
the HWID string, and updates gbb_utility so that it stores the
digest when it modifies the HWID. Because this is a new field,
the GBB_MINOR_VER is incremented.
BUG=chromium:415227
BRANCH=ToT
TEST=make runtests, VBOOT2=1 make runtests
Since the GBB is in the RO firmware, there should be no side
effects for existing devices (but even without that, they should
handle a minor version change without complaint).
Change-Id: Icdb2a0b564677b0b65e58df897d2ec5af3964998
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/221360
This adds a --strict mode to the show command, which requires
that all signatures be valid in order to exit cleanly. It also
creates a "verify" command, which is really just an alias for
"show --strict".
BUG=none
BRANCH=ToT
TEST=make runtests
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: I1fed7db7fe7128191bcab0c615706ef4fe2709f5
Reviewed-on: https://chromium-review.googlesource.com/219732
Reviewed-by: Randall Spangler <rspangler@chromium.org>
BUG=none
BRANCH=ToT
TEST=make runtests
This also modifies the tests to compare the futility sign command
results against the vbutil_kernel results.
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: Ibc659f134cc83982e3f0c0bcc108cc0eddbe228e
Reviewed-on: https://chromium-review.googlesource.com/219730
Reviewed-by: Randall Spangler <rspangler@chromium.org>
We have been traversing things by passing a file descriptor. Now
the caller should mmap the file first. This will allow the caller
to determine the file type before traversing into it, so we can
check args.
BUG=none
BRANCH=ToT
TEST=make runtests
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: If69799bde0133689dc9fb5111e6ecb5ac61639c7
Reviewed-on: https://chromium-review.googlesource.com/219649
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Move the Debug() function into a common place instead of several
copies in different files, rename shared functions to start with
"futil_"
BUG=none
BRANCH=ToT
TEST=make runtests
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: I6b844553dff95c24894dae611102716a8da5312d
Reviewed-on: https://chromium-review.googlesource.com/219645
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This provides help messages for the futility commands similar to
the way git does. These show the available commands:
futility
futility help
futility --help
While these show help for a specific command:
futility help COMMAND
futility --help COMMAND
futility COMMAND --help
BUG=none
BRANCH=ToT
TEST=manual
make runtests
And manually look at help messages for each command.
Change-Id: I1126471e242784c6ca7a2f11694fa7c505d833e8
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/219528
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Since all of the functionality of the resign_firmwarefd.sh script
is built in to futility, let's just make that script invoke
futility to do the work. We'll come back and remove the script
entirely, once all outside references to it have been changed to
do the right thing.
BUG=chromium:224734
BRANCH=ToT
TEST=make runtests
Also tested by editing tests/futility/test_resign_firmware.sh to
invoke the resign_firmwarefd.sh script instead of futility.
Everything passed.
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: Id068e551067a956cd7ddc3f9b9e23488261d8d94
Reviewed-on: https://chromium-review.googlesource.com/216716
Reviewed-by: Randall Spangler <rspangler@chromium.org>
If we're re-signing a valid BIOS image, we want to be sure that
we preserve the original firmware preamble flags (RO_NORMAL and
so forth) if the --flags option does not specifically override
it.
This change adds a test for that case, and makes it happen.
BUG=chromium:224734
BRANCH=ToT
TEST=make runtests
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: I8cbde66abaf96ec82adf0205bedf57b1fd1b82a1
Reviewed-on: https://chromium-review.googlesource.com/216714
Reviewed-by: Randall Spangler <rspangler@chromium.org>
The "sign" command can perform the same operation as the old
resign_firmwarefd.sh script, only about 20 times faster. The
test for that will use the new command instead.
BUG=chromium:224734
BRANCH=ToT
TEST=make runtests
Change-Id: Ie7f7a0ab6fc00d7e06cb263733bf6e7246fdb023
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/216227
Reviewed-by: Randall Spangler <rspangler@chromium.org>
It doesn't yet handle block devices, but it can display normal files
containing a entire BIOS image, a GBB, a VBLOCK, a .vbpubk, a .vblock,
and a firmware preamble (VbFirmwarePreambleHeader).
The command-line options are not well-documented.
BUG=chromium:224734
BRANCH=ToT
TEST=make runtests
Change-Id: I181f6331ae23599302bbaee3f270e8af9586cf06
Reviewed-on: https://chromium-review.googlesource.com/216032
Commit-Queue: Bill Richardson <wfrichar@chromium.org>
Tested-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
